Parallel scan spectral surface plasmon resonance imaging.
We describe a parallel scan spectral surface plasmon resonance (SPR) imaging technique. We demonstrate experimentally, with a line-shaped light illumination, that an image acquired with an area CCD detector provides both SPR wavelength information and one-dimensional spatial distribution. Thus two-dimensional distribution of the refractive index of the entire sensing plane can be obtained with a one-dimensional optical line parallel scan. The technique offers advantages of both high sensitivity and high throughput, and could have potential applications in biochips analysis.
Liu
Le
L
Laboratory of Optical Imaging and Sensing, Graduate School at Shenzhen, Tsinghua University, Shenzhen, 518055, China. heyh@sz.tsinghua.edu.cn
He
Yonghong
Y
Zhang
Ying
Y
Ma
Suihua
S
Ma
Hui
H
Guo
Jihua
J
D004867:Equipment Design; D005947:Glucose; D007091:Image Processing, Computer-Assisted; D008859:Microscopy, Polarization; D008962:Models, Theoretical; D012031:Refractometry; D012996:Solutions; D020349:Surface Plasmon Resonance / Q000295:instrumentation / Q000379:methods*
D012996:Solutions; D005947:Glucose